3 years ago

Which of the following is not a vector quantity?

Physics

1 answer:

maksim [4K]3 years ago

7 0

Answer:

A. Speed

Explanation:

A vector quantity is a quantity which has both magnitude and direction. Here in the given options, speed is a scalar quantity but not the vector quantity.

You might be interested in

A particular car has a weight of 9500 N. What is the mass of the car? 9500 kg 95000 kg 950 kg 2160 kg

Ivenika [448]

950kg. It is W=mg. therefore, mass= W/g which is W/10

=9500/10

=950

8 0

3 years ago

3. 500ml of 60oC water at is added to a beaker. Water’s specific heat is 4.186 J/g °C. You have 40ml of and unknown substance th

castortr0y [4]

Idkd djdjdbd djkdmdkdmkrkr r r r. R r

8 0

3 years ago

The National Grid supplied a house with 18,000,000 J of energy in 1 hour. What was the average current supplied to the house dur

alex41 [277]

I got 0.0126, but it feels wrong.

7 0

4 years ago

A ball rolls onto the path of your car as you drive down a quiet neighborhood street. To avoid hitting the child that runs to re

ehidna [41]

Answer:

F = 7.143 kN

Explanation:

given,

time taken to apply break = 1.05 s

car slows down from 15 m/s to 9 m/s

mass of the car = 1250 Kg

force is equal to the change in momentum with respect to time.

$F = \dfrac{\Delta P}{t}$

$F = \dfrac{m(v_f - v_i)}{t}$

$F = \dfrac{1250\times (9 - 15)}{1.05}$

$F = \dfrac{-7500}{1.05}$

F = -7142.85 N

F = - 7.143 kN

Force is acting opposite direction of velocity of car i.e. the sign is negative.

7 0

3 years ago

If a runner exerts 350 J of work to make 125 W of power, then how long did it take the runner to do the work?

PilotLPTM [1.2K]

225 is the correct answer

5 0

3 years ago

Read 2 more answers